Thank you very much for your response, a great one too.
I agree with your statement, how the Sims was not made to be played online, but EA are constantly looking for ways the widen their game and this would be the perfect lure for marketing and sales. Don't forget, the Sims was never meant to even go as far as it is today. It started out as a sort of simulator for architects when they were designing buildings and its progressed to how we see it today, giving reason to how it will expand ahead during the future.
Yes, I agree with your points there, with a strand version or a Sims 5 version with this feature.
You would still control your own Sims and family, you would not have control of another players Sim, but you can influence their Sims life by interacting. For example, my sister joins my world, via password controlled. She is living in my neighborhood, I am able to see her family on my computer screen and vice versa. I can interact with her Sims and she can interact with mine, though, we cannot control another persons Sim, just our own.
I agree with your point there, how it maybe an issue for people who does not know anyone else who play Sims. This would have to be looked into further, taking into account that it still needs to be safe and family controlled to maintain the same age rating. We don't want to turn the Sims into some online chat room. That would completely ruin the game itself.
Thank you very much for your wonderful points.